Hose-coupling.



E. WATKINS dz J. H. MILLER.

HOSE GOUPLING.

APPLmmIon Hmm 00122,*1'907. 927,388.

Patented July 6,` 1909.

STATES PATENT OFFICE.

'EVAN WATKINS, OF CLEVELAND, AND JOHN H. MILLER, OF ELYRIA, XOHIO.,

HOSE-COUPLING.

Specification of Letters Patent.

Patented July e, 1909.

To all whom it 'may concern: Be it knownthat we, EvA'N WArKiNs an JOHN H. MiLLnn, citizens of the United States, residing at Cleveland, in the county of Quyaho a and State of Ohio, and at Elyria, in t e county of Lorain and State of Ohio, respectively, have invented certain new and useful Improvements in Hose- Couplings, of which the following is a specification.

It is customary in the art of hose and pipe cou lings to provide the liose ends thereof Wit inner sleeves and to arrange about such sleeve clamping members which are adapted to be drawn inwardinto engagement with the hose section at the free ends whereby the hose is either hunched as it were, into the re,- ceiving end or it is merely held by such free ends and this is not suiiicient to prevent leakage under extremely high ressure or to prevent the loosening up of the ose end.

The object of the present invention there-- foreis to rovide clam ing members of a uniform thic ess vthrong lout their length and to arrange them in a vmanner such that normally they are in a cylindrical formation` about saidsleeve forming an annular opening `fortthe receptionof the hose section, and further to provide in connection with such clam ing members` suitable means surrounding t e same and adapted to draw them in singly against the hose end `so that they clamp upon the hose-throughout substan-` tially `their entire lengthof such clamping members.

i Withthe above and other ends inview, the invention consists in the `novel construction, arrangement andcombination of parte, hereinafter described, illustrated in the accompanyingl drawings, and particularly pointed outin t e appended claims.

Referring to the drawings, forming a part `of this specification, Figure 1, is a pers ective view of the improved coupling as'app 'ed to an Vordinary hose-pi Fig. 2, a longitudinal sectional view o the same. Fig. 3, a view of a modified form embodying a male hose-nipple.`

a female hose-nipple for screwing over a stopcock or receiving'the male ni ple shown in Fig. 3. Fig. 5, an end view the' modified form shown in Fig. 4, the female hose-nipple being removed. Fig. 6, aside elevation of the improvedl clamping cou ling or brid ing member. Fig. 7, a view o the enlarge or .the centra Fi 4, a view of a modified4 form provided with a flanged union carrying` Similar charactersof reference designate like parts throughout all the figures of the drawlngs. A

The primary form of the improvedA coupling comprises but three parts, viz.: the main clamping cou ling, pro er, or bridge member, and the c amping s eeve-nuts for taking over the endsof the main coupling or bridge member.

The main couplin or bridge member is provided in its wal s with oppositely-disposed annular recessrooves or channels l, terminating at their c osed or base ends in a central ring or exteriorly-smooth body portion 2, and formin an exteriorly screwthreaded clam ing-s -ell or outer body por- 'tion 3, hereina ter more fully described, and

an inner or central sleeve member or core portion 4, provided with a diametrically- The annular recess-channels 1, intermedi--im ate the end portions ofthe inner tubular member 4, and outer body portion 3, are ada ted to receiveandtake over the ends of the ose or pi e to be connected, and, it will be observed, t at the end portions of the inner tubular member 4, extend beyond the ends of the outer body portion 3, and that the outer eriphery thereof is tapered from lpring portion 2, outwardly to the ends, the former feature being for the purpose of preyenting the cutting, breaking or mutilating ofthe inner walls ofthe hose at the ends of `the tubular member, while the ,latter featureis `for Ithe purpose of spreading ed to be c am ed down upon the outer wallsof the endso the hose surroundin the end portions of the inner tubular mem er 4, by means of clamping sleeve-nuts 6, each having a flaring screwthreadedbore or opening 7,

ico

as shown most clearly in Fig. 7, of the .drawf ings. The nuts are preferably octagonal in form as shown, and it isevident that when the ends of the hose have been placed in the annular recess-channels 1, and the flaring or receiving side of the nuts 6, are drawn up, the

clamping-members 3, will be drawn down and securely clamp or pinch the ends of the hose about the ends of the inner tubular member 4, as shown most clearly in Fig. 2, of the drawings.

In Fi 3, is shown the main coupling member in t e form of a male Ihose-nipple, while in Fig. 4, is shown one side or alf ofthe main coupling, member rovided with an eX* teriorly screw-threaded ead 8, with a flanged Octagon-nut 9, taking over and carrying a flanged 'female hose-nipple 10, for rsecuring over a stop-cock, or receiving the male hosenipple shown in Fig. 8. It will be observed that the female hose-nipple 10, is provided about its periphery with a plurality of longitudinall -eXtending ribs 11, by means of which t e hose-nipple may be drawn up or loosened on the stop-cock. Upon referring to Fig. 5, it will also be observed that the 'opening of the Octagon-nut 9, is provided with a plurality of recess-grooves 12, adapted to register with and take over the ribs 11, of the nipple 10.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of our invention will be readily understood. Having thus described our invention, without having attempted to set forth all the forms in which it may be made, or all the modes of its use, we declare that what we claim and desire to secure by Letters Patent, is,-.

1. Alhose coupling member comprising a body portion having integral inner and outer hose clamping sleeves, the inner sleeve having its outer surface tapered toward the free end, and the outer sleeve being cut or slotted inward from the free end and having an inner surface which is normally substantially cylin drical and an outer surface which is threaded, said inner and outer sleeves forming van annular space which is adapted to receive the hose and is normally of greater width at the open or outer end than at the inner end, and a ta ered clamlping nut engaging the threads on .t e outer s ened to draw thesections of the atter inward for causing the same to fir 'v hose section throughout their hose clamping eeve and servin when' -tightso that the clamping surfaces of the two sleeves are substantially parallel and the sections of the outer sleeve bear against the hose with substantially uniform pressure throughout their hose engaging length.

2. A hosescoupling member comprising a body portion rovided with an inner sleeve for receiving t ie hose section said sleeve hav ing its outer surface tapered towardits free end clamping members `integral with said body portion, arranged in substantially` a cylindrical formation around said sleeve and provided with screw threads yon their eX- terior, said clamping members being substantially uniform in thickness throughout their length and a nut for engaging the threaded clamping members and causing them to firmly engage the hose section throughout their hose clamping length.

3. A hose-coupling comprising hose receiving ends each provided with an inner sleeve the outer surface of which is tapered toward its free end clamping members integral with each receiving member and arranged in substantially a cylindrical formation around the corresponding sleeve, said clamping members being substantially uniform in thickness throughout their length and means ada ted to be secured about said clam ing mem ers y engage the length.

4. A hose-coupling comprising hose receiving ends each provided with an inner sleeve tapering toward its outer end clamping members integral with each hose receiving end andarranged in substantially a cylindrical formation around the correspondin sleeve and provided on their exterior wi screw threads, said clamping members being substantially uniform in thickness throughout their length and a tapered nut engaging the threads on said clamping -members fr causing the same to firmly clamp the hose section against the inner sleeve throughout their. hose clamping length.

In testimony whereof We have affixed our signatures, in presence of two witnesses.

EVAN WATKINS. JOHN H. MILLER.

Witnesses:

CHARLES AUSTIN, W. C. BROCKETT. 

